利用crowat模型和气候数据估算主要作物灌溉需水量和灌溉调度

IF 1.6 Q3 WATER RESOURCES
Shumaila Soomro, G. S. Solangi, A. A. Siyal, Asad Golo, Nabi Bux Bhatti, A. G. Soomro, A. H. Memon, S. Panhwar, Hareef Ahmed Keerio
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引用次数: 0

摘要

世界正面临严重的缺水问题。巴基斯坦海得拉巴地区目前使用的灌溉技术不是由需求驱动的。本研究采用基于气候、土壤和作物数据的CROPWAT模型,确定海得拉巴地区主要作物的作物需水量(CWR)、灌溉需水量(IWR)和灌溉调度。分析表明,甘蔗、香蕉、棉花和小麦在整个生长季节的总CWR为3127.0;2012.3;1073.5;和418.9毫米。然而,甘蔗、香蕉、棉花和小麦在整个生长季节的IWR为2964.0;1966.7;1052.7;和407.6mm。然而,甘蔗、香蕉、棉花和小麦的降雨量贡献分别为163.0、45.6、20.8和11.3毫米。旱季由于高温和低相对湿度,CWR和IWR较高。然而,每种作物的IWR在初始阶段都很低,随着生长阶段的增加而增加,直到完全生长阶段达到峰值。该研究建议使用CROPWAT来准确地调查灌溉用水需求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Estimation of irrigation water requirement and irrigation scheduling for major crops using the CROPWAT model and climatic data
The world is facing an acute water shortage. The present irrigation techniques used in the Hyderabad district, Pakistan, are not demand-driven. The present study was carried out to determine the crop water requirement (CWR), irrigation water requirement (IWR), and irrigation scheduling for major crops grown in the Hyderabad district using the CROPWAT model based on climatic, soil, and crop data. The analysis revealed that the total CWR for the entire growing season for sugarcane, banana, cotton, and wheat were 3,127.0; 2,012.3; 1,073.5; and 418.9 mm, respectively. However, the IWR for sugarcane, banana, cotton, and wheat for the entire growing season was found to be 2,964.0; 1,966.7; 1,052.7; and 407.6 mm, respectively. However, the contribution of rainfall was 163.0, 45.6, 20.8, and 11.3 mm during sugarcane, banana, cotton, and wheat, respectively. The CWR and IWR were higher during the dry season due to high temperatures and low relative humidity. However, the IWR of each crop was low in the initial stage which increased with the growing stage until the peak at the full growth stage. The study recommends the use of CROPWAT to investigate the irrigation water requirements with accuracy.
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来源期刊
CiteScore
2.30
自引率
6.20%
发文量
136
审稿时长
14 weeks
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